A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 5996-00-075-3027
NSN 5998-01-403-2586
NSN 6650-01-323-6252
NSN 6110-01-443-3279
NSN 4140-01-621-5775
NSN 6150-01-556-2630
NSN 4140-01-067-8242
NSN 6620-00-734-7746
NSN 6130-01-265-7225
NSN 6620-00-992-5876
NSN 6620-01-280-9478
NSN 7035-00-420-1310